Can the UK's Toads Survive from Roads and Population Collapse?
It's a Friday night at half past seven, but instead of heading to the pub or watching a film, I've taken a train to a town in Wiltshire to meet up with local helpers from a amphibian rescue group. These committed people give up their evenings to protect the native amphibian community.
A Worrying Decline in Numbers
The Bufo bufo is growing more uncommon. A recent research conducted by an amphibian and reptile charity revealed that the UK toad population have almost halved since 1985. Seeing a creature that has been a stalwart of the UK landscape in decrease is described as "worrying" by researchers. Toads "don't need very particular environments" and "ought to live successfully in most of areas in Britain," meaning if even they are struggling to persist, "it indicates that the ecosystem is unbalanced."
The UK toad population has almost halved since 1985
The Danger from Traffic
Though the research didn't examine the reasons for the decline, traffic is a major factor. Estimates suggest that 20 tons of toads are crushed on UK roads annually – in other words, hundreds of thousands. Unlike frogs, which might be content to mate "if you left out a bucket of water," toads favor large ponds. Their ability to stay out of water for longer than frogs allows they can journey farther to reach them – often long distances. They usually follow their ancestral migration routes – it's typical for adult toads to return to their natal pond to mate.
Migration Habits
Appropriately enough, the first toads begin their quest for a partner around February 14th, but some move as late as April, until it gets dark and travelling after sunset. During that time, toads start moving from where they have been hibernating "all pretty much at the same time."
One volunteer, who was raised in the area and has been working to save its toad population since he was a boy, notes that "Their sole purpose: to go and have an orgy." If their route happens to a road, they could be killed by traffic, and that breeding season would be lost – stopping a new generation of toads from being produced.
Rescue Groups Across the United Kingdom
Finding many of toad carcasses on nearby streets "resonates deeply with people," and has resulted in the creation of toad patrols across the UK – 274 groups are currently registered with a national initiative. These teams collect toads and transport them across roads in buckets, as well as recording the number of toads they encounter and lobbying for other safety solutions, such as road closures and amphibian passages.
Patrols tend to operate during the migration season, when amphibian movements are more regular. However, this implies they can overlook groups of toadlets, which, having existed as eggs and then tadpoles, exit their water habitats over an irregular timetable in late summer. Because of their small stature – just a couple of cm wide – "they are destroyed by vehicles." And as being hit "basically turns them into mush," it's more difficult to collect information on them. At least when mature amphibians are lost, their carcasses can be tallied.
Year-Round Work
In contrast to many groups, a specific volunteer group, who are in their eighth year of functioning, go out throughout the year – not nightly, but when conditions are warm and wet, or if someone has reported about a toad sighting in their messaging app. When I request to accompany them on patrol, they admit it is "not ideal conditions" – toad hibernation season has started and it's been a arid period – but several of the helpers willingly accept to walk up and down their route with me and see what we can find. "Should anyone can locate any toads tonight, those two will find one," says the patrol manager, indicating her teenage child and the longtime volunteer. We've been out for two hours without a single toad sighting, and now they have scaled a barbed wire fence to inspect beneath some wood.
Community Involvement
The family duo became part of the patrol a while back. The youngster loves all things nature-related and has an goal to become a environmentalist, so his parent started to search for things they could do together to protect native animals. Now she loves it as much as he does, the 41-year-old entrepreneur explains – so when the team was looking for a new manager lately, she volunteered for the role.
The teenager, too, has played an important role in the group. A clip he created, urging the local council to close a street through a nature reserve during migration season, influenced the outcome the team's way. After a twelve months of campaigning, the council approved an "access-only" rule between evening and morning from February through to spring. Most drivers duly avoided the road.
Other Wildlife and Challenges
Several cars go by when I'm out on patrol and we discover some casualties as a result – no amphibians, but three squashed newts. We see one live amphibian as well, and the youngster is especially excited to see a daddy longlegs, which dances in his hands. Yet in spite of the group's hardest attempts to let me see a toad, the native community has obviously settled down for the winter. It seems that I couldn't have found any more luck elsewhere in the nation – all the rescue teams I reach out to explain that it's very difficult at this time of year.
The group expects to help approximately 10,000 adult toads across the road
One email I receive from another volunteer, who has kindly made the effort to look for toads in a noted location, thought to be the biggest tracked toad group in the UK, reaches me with the subject line: "None found." However, in February and March, he tells me, the group plans to assist around ten thousand adult toads over the street.
Effectiveness and Limitations
How much of a difference can these organizations actually make? "The reality that volunteers are performing this regularly on cold, damp and unpleasant late nights is remarkable," says an expert. "That's something that very much should be celebrated." However, while toad patrols are able to reduce the drop, they cannot prevent it entirely – partly since traffic is just one danger.
Other Dangers
The climate crisis has resulted in extended spells of drought, which create the wrong conditions for some of the animals that toads consume, such as worms and slugs, while higher water temperatures have led to an increase of blue-green algae, which can be toxic to toads. Milder winters also lead toads to emerge from their hibernation more frequently, disrupting the resource preservation vital to their existence. Loss of environment – particularly the disappearance of big water bodies – is an additional threat.
Researchers are "often concerned about overemphasizing practical benefits on wildlife," however "It's important in just having these animals around." But toads do have an important role in the ecosystem, consuming almost any small creatures or tiny organisms they can fit in their mouths and in turn feeding a number of birds and mammals, such as hedgehogs and otters. Enhancing situations for toads – ie creating more ponds, conserving woodland and installing toad tunnels – "benefits for a wide range of additional wildlife."
Historical Importance
Another reason to try to keep toads around is their "historical significance," notes an specialist. Myths and folklore around toads go back {centuries|hundred